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VeryTangled · 04-17-2013, 09:17 PM

Hello 'Barners, I have two questions about vacuum testing and values.

The engine is a stock 21 stud, helmet dist, stock fuel pump, water pumps in heads, real stock.

Did a vacuum test today, engine cold, gauge attached to the line for the wipers, right off the intake manifold. Readings between 15 and 16 inches at idle which I estimate at 500-600 rpm.

What are the appropriate values? Did I do the test correctly?

Thanks in advance for your input.

-VT/Jeff

04-17-2013, 09:17 PM	#1
VeryTangled Senior Member Join Date: May 2010 Location: (Not far enough...) Outside of DC Posts: 3,387	Vacuum testing questions, stock 21 stud Hello 'Barners, I have two questions about vacuum testing and values. The engine is a stock 21 stud, helmet dist, stock fuel pump, water pumps in heads, real stock. Did a vacuum test today, engine cold, gauge attached to the line for the wipers, right off the intake manifold. Readings between 15 and 16 inches at idle which I estimate at 500-600 rpm. What are the appropriate values? Did I do the test correctly? Thanks in advance for your input. -VT/Jeff Last edited by VeryTangled; 04-17-2013 at 11:14 PM.